Highway 1 Corridor Investment Program Environmental Documents
The Santa Cruz County Regional Transportation Commission (RTC), in cooperation with the California Department of Transportation (Caltrans) and the Federal Highway Administration (FHWA), has prepared the Highway 1 Tier I/Tier II Environmental Impact Report/Environmental Assessment. For purposes of environmental analysis, the project is divided into two components:
- Tier I – A long term, program level analysis for the future of the Highway 1 corridor between Santa Cruz and Aptos. The Tier I concept for the corridor would be built over time through a series of smaller incremental projects (referred to as Tier II projects).
- Tier II – Project level analysis for auxiliary lanes between 41st Avenue and Soquel Drive and a pedestrian/bicycle overcrossing of Highway 1 at Chanticleer Avenue.
The full environmental document is provided below.
Final Environmental Document
Volume I: Final Environmental Document (34 MB)
Volume II: Final Appendices (68 MB)
Volume III: Response to Public Comments (22 MB)
Addenda to Technical Studies:
- Addendum to Air Quality Study Report with Appendix
- Addendum to Community Impact Assessment
- Addendum to Drainage Report
- Addendum to Growth Inducement Study
- Addendum to Preliminary Geotechnical Report
- Addendum to Natural Environment Study
- Cumulative Impact Analysis Technical Report
- Addendum to Noise Study Report
- Biological Assessment (24 MB)
- Addendum to Storm Water Data Report
- Traffic Operations Report Appendix J and Appendix K
- Addendum to Visual Impact Assessment
- Addendum to Water Quality Study Report
- Biological Resources Memorandum to File (posted 1/3/19)
- Noise Memorandum to File (posted 1/3/19)
- Hazardous Waste Memorandum to File (posted 1/3/19)
- Energy Memorandum to File (posted 1/3/19)
- Update to Transit Market Analysis of Freeway-Oriented Express Buses (posted 1/3/19)
Draft Environmental Document
Volume I: Draft Environmental Document
Technical Studies
- Air Quality Study Report, March 2013
- Archaeological Survey Report, December 2010 – Confidential
- Community Impact Assessment, September 2015
- Draft Relocation Impact Study, June 2015
- Drainage Report, December 2013
- Growth Inducement Study, September 2008
- HOV Report – September 2007
- Historic Property Survey Report, December 2010 – Volume I is confidential
- Historic Resources Evaluation Report, May 2010
- Location Hydraulics Study Report, March 2013
- Natural Environment Study, January 2015
- Noise Study Report, May 2013
- Paleontological Evaluation Report and Addendum, April 2008/September 2011 – Confidential
- Parking Impacts Memorandum, April 2011
- Phase 1 Initial Site Assessment, March 2014 and Appendix B Environmental Database Search Report
- Preliminary Geotechnical Report, July 2007
- Storm Water Data Report, November 2012
- Technical Memorandum on Energy Impacts, May 2011
- Traffic Operations Report, April 2012 and Appendix
- Traffic Operations Report Supplemental Report, May 2010
- Transit Market Analysis Study – May 2008
- Visual Impact Assessment, July 2013
- Water Quality Study, March 2013